You better measure your spindle. Again standard collet ER20 is 25mm. Your spindle is 24mm. If you do not believe me, text Langmuir. Or search the forum for the related threa
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Use of aftermarket ER20 collet nuts. My machine seems to be a different spindle thread than the 25mm 1.5mm standard. The OEM nut fits perfectly and seems to be 24mm x 1.5. Anyway it’s a full 1 MM smaller than the standard.
It may be just my machine but, I certainly don’t want anyone to get hurt or damage their spindle threads.
I did not see this problem till it was brought to my attention by AlexW. You would never know it unless you put it on the spindle without a collet inserted.
Jun 22
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langmuir-danielCrossFire PRO
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There’s two types of commercially available ER20 collet nuts- one comes with M24x1.0 threads and the other comes with M25x1.5 threads.
When we were designing the MR-1 spindles we accidentally spec’ed an M24x1.5 thread on the drawing. By the time spindle shafts were in production, it was too late. The only option we had available was to customize the collet nut threads to be M24x1.5 to match.
We’ve got a good supply of these collet nuts now so we’ll make them available for purchase on the website.